Surah Al-Mai'dah (The Spread Table), Verse 43

وَكَیْفَ یُحَكِّمُوْنَكَ وَعِنْدَهُمُ التَّوْرٰىةُ فِیْهَا حُكْمُ اللّٰهِ ثُمَّ یَتَوَلَّوْنَ مِنْ بَعْدِ ذٰلِكَ وَمَاۤ اُولٰٓىِٕكَ بِالْمُؤْمِنِیْنَ 

Wa kaifa yuhakkimoonaka wa 'indahumut Tawraatu feehaa hukmul laahi summa yatawallawna mim ba'di zaalik; wa maaa ulaaa'ika bilmu'mineen

“But why do they come to thee for decision, when they have (their own) law before them?- therein is the (plain) command of Allah; yet even after that, they would turn away. For they are not (really) People of Faith.”

Quran 5:43 (Yusuf Ali Translation)